fix(app-helper): Fix func call on variables

src/PHPStan/Laravel/DisallowAppHelperUsageRule.php

@@ -25,7 +25,13 @@ public function getNodeType(): string
      */
     public function processNode(Node $node, Scope $scope): array
     {
-        $functionName = $node->name->toString();
+        $nodeName = $node->name;
+
+        if (!$nodeName instanceof Node\Name\FullyQualified) {
+            return [];
+        }
+
+        $functionName = $nodeName->toString();
 
         if ($functionName !== self::FUNCTION_NAME) {
             return [];

tests/PHPStan/Laravel/DisallowAppUsageRule/DisallowAppUsageRuleTest.php

@@ -23,7 +23,10 @@
             7,
         ],
     ],
-    'calls app function from other namespace' => [
+    'skips app function from other namespace' => [
         __DIR__ . '/Fixture/skip_app_function_in_namespace.php.inc',
-    ]
+    ],
+    'skips function call on variable' => [
+        __DIR__ . '/Fixture/skip_variable_call.php.inc',
+    ],
 ]);

tests/PHPStan/Laravel/DisallowAppUsageRule/Fixture/skip_variable_call.php.inc

@@ -0,0 +1,15 @@
+<?php
+
+class CallsOtherAppHelper
+{
+    public function container()
+    {
+        $var = function () {
+
+        };
+
+        return $var();
+    }
+}
+
+?>